Working for
Newsweek, Shimkin read documents released by the United States
Military Assistance Command, Vietnam (MACV). Reviewing the MACV (pronounced
"mack vee") documents about Operation Speedy Express, conducted in the
Mekong Delta from December 1968 through May 1969, Shimkin noticed the large disparity between the American claims of 10,899 enemy dead and the reported capture of only 748 enemy weapons. Shimkin's conclusion, based on further
documentary research and on interviews with American officials and Vietnamese witnesses, was that a large number of the reported dead were unarmed Vietnamese non-combatants whose deaths, whether accidental or deliberate, were used to enhance the
body count that commanders of the
Ninth Infantry Division considered the measure of the operation's success. Among the specific incidents uncovered by Shimkin was the one at
Thanh Phong on the night of February 25–26, 1969, in which
United States Navy SEALs led by
Lieutenant (jg) Bob Kerrey, later
Governor of Nebraska and a
United States Senator, killed 21 civilians who were added to the body count of enemy dead, information that did not become public until 2001. Shimkin and his boss, ''Newsweek's''
Saigon bureau chief Kevin P. Buckley, produced a 4,700-word story that specifically alleged "that thousands of Vietnamese civilians have been killed deliberately by U.S. forces." The numbers, if not the deliberate nature of the casualties, were later supported by an official, though secret, U.S. Army report that concluded: "[W]hile there appears to be no means of determining the precise number of civilian casualties incurred by US forces during Operation Speedy Express, it would appear that the extent of these casualties was in fact substantial, and that a fairly solid case can be constructed to show that civilian casualties may have amounted to several thousand (between 5,000 and 7,000)." Pared back to 1,800 words by
Newsweek editors who feared that the allegations would be seen as a "gratuitous attack" on the administration of President
Richard M. Nixon following the revelations of the
My Lai massacre, the story was published in the June 19, 1972, issue under the title "Pacification's Deadly Price", but it attracted little attention. A few weeks later, Shimkin was killed. ==Shimkin at Trảng Bàng==